code: def _linestring_to_geo_json(
      linestring,  # type: pyocient._STLinestring
  ) -> Any:
      """
      Converts the pyocient._STLinestring object to a GIS format
      compatible with the Superset visualization toolkit (powered
      by Deck.gl).
  
      :param linestring: the pyocient._STLinestring instance
      :returns: the geoJSON of this linestring
      """
      if len(linestring.points) == 1:
          # While technically an invalid linestring object, Ocient
          # permits ST_LINESTRING containers to contain a single
          # point. The flexibility allows the database to encode
          # geometry collections as an array of the highest dimensional
          # element in the collection (i.e. ST_LINESTRING[] or
          # ST_POLYGON[]).
          point = linestring.points[0]
          return _point_to_geo_json(point)
  
      wkt_linestring = str(linestring)
      return _wkt_to_geo_json(wkt_linestring)
  
imports: import contextlib
  import re
  import threading
  from re import Pattern
  from typing import Any, Callable, List, NamedTuple, Optional
  from flask_babel import gettext
  from sqlalchemy.engine.reflection import Inspector
  from superset.constants import TimeGrain
  from superset.db_engine_specs.base import BaseEngineSpec
  from superset.errors import SupersetErrorType
  from superset.models.core import Database
  from superset.models.sql_lab import Query
label_desc: Use image node_id 5 for calling a global function with example usage: _linestring_to_geo_json(linestring) and returns: _wkt_to_geo_json, _point_to_geo_json